Horseshoe-calk.



N0. 805,435. PATENTED NOV. 28, 1905.

O. E. ANDERSON & D. GRBN. HORSESHOE GALE.

APPLIGATION FILED JUNE 9, 1905- 6 CarZEArzdemam (5 Witnesses:v

inventors Httofngs,

UNITED sTA r s PATENT OFFICE.

CARL E. ANDERSON AND DAVID GREN, OF NEVi YORK, N. Y.

Specification of Letters Patent.

Patented Nov. 28, 1905.

Application filed June 9, 1905. Serial No. 264,519.

To (ti/Z whom it may concern Be it known that W6,CARL E. ANDERSON and DAVID GREN, citizens of the United States, residing at New York, in the county of New York and State of New York, have invented a new and useful Horseshoe-C'alk, of which the following is a specification.

This invention relates to horseshoe-calks.

The objects of the invention are to facilitate the positioning of the calk upon the shoe and its removal when necessary; to cheapen the construction of such devices and materially reduce their weight; to provide a calk that so long as operative will present sharp edges to iced or snow surfaces; to dispense with riveting or upsetting to hold the calk in position, thereby materially reducing the cost of the application of the device to position, and generally to improve and render more efiicient devices of the character em-' bodied in this invention.

With the above and other objects in view, as will appear as the nature of the invention is better understood, the same consists in the novel forms of horseshoe-calks hereinafter fully described and claimed.

In the accompanying drawings, forming a part of this specification, and in which like characters of reference indicate corresponding parts, Figure 1 is a view in elevation of a horseshoe, showing the same equipped with the calk of the present invention. Fig. 2 is a view in transverse section taken on the line 2' 2, Fig. 1. Fig. 3 is a perspective detail view of the body of the calk. Fig. 4 is a similar view of a filler used in connection with the calk. Fig. 5 is a perspective detail view of the wedge or expanding member.

Referring to the drawings, S designates a horseshoe of any preferred construction and provided with any desired number of recesses or sockets 8, extending nearly through the same. In this instance there are but four of these sockets shown; but it is to be understood that the invention is not to be limited to this number, as it may be increased or diminished when found necessary or desirable and still be within the scope of the invention.

The calk comprises a split tubular body member 1, a wedge 2, constituting an expanding member, and a filler 3, preferably of rubber, which is disposed within the calk when the latter is secured to the shoe, thus to preclude entrance of dirt to the calk. The body member 1 is made of hardened sheetsteel, rolled to the appropriate contour, and is split longitudinally, the walls 4 of the split being spaced apart and oppositely beveled or inclined for a portion of their length, as shown at 5. This body member is normally of less external diameter than that of the socket in which it is placed, and in order to cause the calk to be rigidly held within the socket the wedge 2 is employed, the lower or entering end of which is sharply tapered, as at 6. This tapered portion of the wedge engages the beveled walls 5 of the calk and effects the initial expansion of the body member, and when driven to its seat, as clearly shown in Fig. 2, the exterior wall of the body member will impinge the wall of the socket with such force as to cause it to be held positively positioned so long as the calk is serviceable. In order to preclude entrance of dirt or ice to the calk, the filler 3 is employed, which, as above stated, is of rubber, and tightly fits within" the calk.

When the calk is to be removed from any cause, the wedge 2 is driven inward, whereupon the body mcmber will contract sufficlipntly to permit it to be removed from the s cc.

Having thus described the invention, what is claimed is 1. A hollow calk longitudinally cleft throughout its entire length, the walls of the cleft being oppositely inclined for a portion of their length, and an expanding wedge adapted to coact with the inclined parts.

2. A longitudinally-cleft hollow calk, the walls of the cleft being oppositely inclined for a portion of their length, an expandingwedge adapted to coact with the inclined parts, and a filler.

3. The combination with a horseshoe provided with a smooth-walled socket, of a longitudinally-cleft hollow calk seated within the socket, the walls of the cleft being oppositely inclined for a portion of their length, an expanding-wedge coacting with the walls to lock the calk within the socket, and a filler.

In testimony that we claim the foregoing as our own we have hereto aflixed our signatures in the presence of two witnesses.

CARL E. ANDERSON. DAVID GREN. VVitnes'ses:

FREDERICK E. HOWELL, CHAs. J. BERTEMY. 

